Rules on Civil Procedure
Section 8. Appeal from orders dismissing case without trial; lack of jurisdiction. - If an appeal is taken from an order of the lower court dismissing the case without a trial on the merits, the Regional Trial Court may affirm or reverse it, as the case may be. In case of affirmance and the ground of dismissal is lack of jurisdiction over the subject matter, the Regional Trial Court, if it has jurisdiction thereover, shall try the case on the merits as if the case was originally filed with it. In case of reversal, the case shall be remanded for further proceedings.
If the case was tried on the merits by the lower court without jurisdiction over the subject matter, the Regional Trial Court on appeal shall not dismiss the case if it has original jurisdiction thereof, but shall decide the case in accordance with the preceding section, without prejudice to the admission of amended pleadings and additional evidence in the interest of justice. (n)